Inventor
William P. Kroll
Inventor
Medina, MN, US
Overview
Patents· 32 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Gprimary
G01GWeighing40%
G01BMeasuring length, thickness or similar linear dimensions10%
G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure10%
LOC108%
A61HPhysical therapy apparatus, e.g. devices for locating or stimulating reflex points in the body5%
E04FFinishing work on buildings, e.g. stairs, floors5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
B29CShaping or joining of plastics3%
B29LIndexing scheme associated with subclass b29c, relating to particular articles3%
B60SServicing, cleaning, repairing, supporting, lifting, or manoeuvring of vehicles, not otherwise provided for3%
PatentTitleYear
11,009,385Portable, electronic weigh scale system202110,969,266Weigh scale technology202110,724,855Motor vehicle alignment technology2020D0851687Seed tender load cell201910,031,019Weigh in motion strip scale having plural compliant features20189,354,105'Strip scale technology'20169,297,648'Vehicle wheel alignment technology'20169,279,712'Low profile load cells for use with a scale'2016D0741816'Portable, hand-held controller and indicator'2015D0731344'Strip load cell'2015D0722516'Disc load cell'20157,659,484'Retrofit electronic weighing technology for pallet moving devices'20107,423,225'Weigh in motion technology'20087,137,417'Tire inflation technology'20067,119,287'Platform scale with under-platform mounted load cell protection cases for reducing side forces'20067,040,153'Tire inflation gauge technology'20066,397,657'Apparatus and method for testing torsion bars'20026,314,657'Apparatus and method for gauging the ride height of a vehicle'20016,269,688'Apparatus and method for testing tires'20016,199,427'Apparatus and method for testing leaf springs'20016,047,594'Digital turn plate apparatus'20005,924,249'Stairway step assembly'19995,894,112'Weighing scale apparatus'1999D0399144'Digital turn plate'19985,664,379'Stairway step assembly'19975,646,376'Aircraft weighing scale with improved base, platform and load cell mounting assembly'19975,232,064'Weighing scale assembly'19935,228,527'Force measurement assembly'19934,979,581'Low profile wheel scale assembly'19904,813,504'Load cell structure'19894,775,018'Load cell assembly'19884,714,121'Wheel scale assembly'1987Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1987–2021Patents assigned to KROLL WILLIAM P (14)· patent assignee history
1987–1998Patents assigned to KROLL KARL J F (3)· patent assignee history
1987–2021Based in Medina, MN, US· patent location history
1993–2021Patents assigned to INTERCOMP COMPANY (25)· patent assignee history
2016–2021Patents assigned to EVENSON RANDIE (3)· patent assignee history
2016–2020Patents assigned to KROLL KAI (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| INTERCOMP COMPANY | 25 | 1993–2021 |
| KROLL WILLIAM Pself | 14 | 1987–2021 |
| EVENSON RANDIE | 3 | 2016–2021 |
| KROLL KARL J F | 3 | 1987–1998 |
| KROLL KAI | 2 | 2016–2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Medina, Minnesota, US | 32 | 1987–2021 |